Images of the London headquarters of British alcoholic beveridge giant Diageo, as the company announces the immediate departure of its chief executive Debra Crew. While no reason was given for Crew's departure, which comes after two years as CEO, Diageo -- known for its Johnnie Walker, Guinness and Smirnoff brand -- had been experiencing a tough trading environment, announcing in May that it faced a financial hit from US President Donald Trump's tariffs onslaught. IMAGES